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Lennox G40UH-36A-045 Limit Switch
A limit switch was crafted due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts. The limit switch contains a sensor in the heat exchanger that determines if and when the air is actually warm enough so that it may be pushed through the ducts and out the vents.
Clues limit switch is in dire need of a replacement
- The whole system is beginning to act weird time after time
- Your Lennox system is unable to start or continue to run like it is supposed to
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